Oil cooling and heating system



ay 5, i925.

G. HORVATH OIL COOLING AND HEATING SYSTEM Filed Aug. 9, 192s ananas .GEZA HORVATH, OF DETROIT, MICHIGAN.

OIL COOLING .AND HEATING SYSTEM.

Application tiled August 9, 1923. Serial No. 656,505.

T 0 all whom t may concern.'

Be it known that I, GEZA. HoRvATH, a citizen of the United States of America, residing at Detroit, in the county of Wayne and State of Michigan, have invented certain new and useful Improvements in Oil Cooling and Heating Systems, of which the following is a specification, reference being had therein to the accompanying drawings.`

This invention relates to an oil cooling and heating system especially' designed to insure proper lubrication in connection with the pistons, bearings and other parts of an internal combustion engine, particularly when used as the power plant of an automobile or other motor driven vehicle.

It is a well known fact that extreme temperature conditions interfere with the perfeet lubrication of an internal combustion engine. In the summer time the oil used for lubrication loses part of its viscosity and is thinned out to such an extent that it becomes a poor lubricant. In the winter time a low temperature increases the viscosity of the oil to such an extent that it is some time before the oil is heated after starting an engine and during such interim the movable parts of the engine are practically devoid of lubricant.v Then again, under all operating conditions the air within the crank case, cylinder block and cylinders below the pistons becomes heated during the operation of the engine, decreases the eiiiciency of the oil for lubricating purposes and in many instances causes burning and deterioration of the oil.

The above are, broadly stated, a few conditions encountered in the lubrication of an internal combustion engine, which my invention aims to eliminate or at least rectify to such an extent as to increase the eicency of an engine. My invention in its broadest aspect involves utilizing air as a cooling agent for the lubricating oil and then using the air, which has absorbed heat from the oil, as a supply to the carburetor of vthe engine land in this manner place the engine fuel, when atomized, in a better condition for combustion purposes. This is the sum- `mer adaptation of my invention to an internal combustion engine, and in the winter the engine .exhaust or a portion thereof is utilized as a heating medium for the lubricating oil.

To put my invention into practice, I employ a radiator through which air or ex haust gases may circulate and either cool or heat the walls of the radiator. The radiator is placed in the crankcase of the 'engine and the oil and air heated by conduction.

In order that the radiator may be used for cooling and heating purposes a system of control is provided. and as showing one embodiment of my invention, reference will now be had to the drawing, wherein- Figure 1 isa side elevation of an internal combustion engine having an oil cooling and heating system embodying features of my invention; f

Fig. 2 is an enlarged plan of a radiator, partly broken away and partly in section, and

Fig. 3 is a side elevation of the same,

partly broken away and partly in section.

In the drawing, I have illustrated a conventional form of internal combustion engine as including a crank case l, a cylinder block 2, a crank shaft 3, a carburetor 4 having an air intake connection 5, an intakel manifold 6 establishing communication between the carburetor tand the cylinders of the engine, and an exhaust manifold 7 for the exhaust gases of the engine. In some instances the exhaust manifold 7 is provided with a stove 8 by which airis heated and supplied to the air intake connection 5 by a conduit 9, such equipment beingespe'cially adapted for wintei` time operation of the engine.

An engine such as I have outlined above ordinarily has a lubricating system by which oil is placed i-n the crank case 1 or accumulating therein may be strained and distributed to the 'bearings and other movable parts of the internal combustion engine, the oil being circulated and replenished from time to time. The Vcrank case ordinarily contains the oil circulating pump and said crank case serves -as a reservoir. It is in the crank case or one especially designed for my purpose that I place a radiator, entirely llO walls being connected by a multiplicity of tubes 13 suitably distributed throughout'the casing `with the ends of the tubesopening at the Walls 41l and 12 of the-casing.l

The bottom Wall 12 ofthe casing, contiguous to its ends, fhas connections liet and 1.5 that may extend through the bottom -ivall i6 of the crank case l'aiid be attached thereto by nuts 17 ot' such fastening meaiis'as will establish a non-leakable connection between the crank case and the radiator casing. The radiator casing-may 'occupy the greater-part of the crank case, leaving room tor the oil circulating pump, la Igauge, and-any other elements or devices ordinarily found in ay crank ease, and on 'the top wall -1'1 4oif'the. radiator is placed an oildefiectingr frame or marginal flange 1S which will eaus'efthe oil to fion' on to the. upper Wall ll ofthe easingf and then through the tubes 13 into the bottom part of the crank case, instead'of accumulating 'Within the `crank ease Without passing through the tubes'lB. y

The'air intake connection 5 of thecarbureter -t has a Y-connection 19 bywvhich the conduit 9 coinuninicates with the inta-kev conneetion andthe Y connection 19 permits ot another conduit 2O extendingf therefrom to the connection ot' tl'ie'radiator casing 10,. Iny the. Y Vconnection A1f) is located a Yflap valve 21 that may he adjusted by a suitable operating"mechanism 22 to elose veither the conduit l.l'or the conduit 20 relative. to the air intake connection 5.

The conduit'Lt) may be provided -with a branch 2R eoniniunient-ingr'rsithfa. eoiineftion 24. ot the exhaust pipe T and the branchQB is provided with a'co-iventional torniotdnittei'iiy valve 9G that may be adjusted by an operatinginechanisin 25.

Fousidei'iugsummer use ot'niy invention, the vulve Q1 is adjusted to close the conduit 9 and establish` communication Vbetween the airiiitake connection 5 ot the carburete'r 4 and the conduit Q0 leading to theradiator easing'10. JAir-is adinitted-att-he connection 14: of 'the radiator easing 10 andithis eonneetion may be provided 'with-a. vconventional torni ot breatlieror airsereeningr device n-'hieh will more' or less remove lsolid partit'les 'from the air drawn into theradiator and through the conduit 20 into the carbu- Vreter' because ot' the reduction of atmospheric .pressure produced inthe-c-arbureter and 'the-manifold 6 by the reciproeab'le'xpistons of the engine. "Aironentering oneY end of'the radiatorcasing is-drawii throughout thelenfcjth thereof to the connection 15-and consequently inipi-nges against the tubesl and thefwalls of the radiator casing to cool t'lier-sanie and any oil that may benithin the tubes 13 and exteriorly of the radiator casing'. The air in passing through the radiator 'absorbslheat from the oil and this- -heatedair-on conimingling with atoinized fuel places such fuel in better condition for aud cylinders below'tlie;pist-ons will iinpingo against 'the VWall 41'1 and be cooled tl'iereby,

suohcool-ingr of air'tendingg;l to reduce tem-vv peratureswithinthe engiiieso that the parts are maintained vin better `working order and particularly Tsi-nih lubricating oils as have been distributed about the engine.

In the Winter, the valve 21 may be `1ad. justed'to sluit offith'e'oonduit 20 and open the conduit Qsothat the earbureter may receivey heated air from the.- stove 48. Inorder toxprevent congealing o'f the lubricating oil in the crank case 1, Ibesan-se of a low outside te1nperat1iie,-t'lie valve 2G may bev opened to permit a lportion-of the exhaust gases troni "the engine passing thro-ugh the -conduit Q0 into tl-ie'conneetion 15. iadiatoiicasingr 10, and'exhaust-ingratt the connection 14. rPhe hot gases -Will heat the tubes and Walls ot' the radiator and-:canse the oil'within the crank ease'to be heated by conduction vand placed yin a better condition tor liil'iricatingr` purposes. it is obvious that the wall 11 will be beatedand consequently the air with4` in the engine. therefore, vsurli lubricating oil di-striliuted 'about the engine will be ini'- inediately-plaifed in a` lubricating' condition. This'isImrtieularly'true when fiist starting an engine in cold Weather and it is onlya i-n'atter of a tewseends until the-lubricating system :isf-fun'ctioninii just' aS-i'velly in the eold weatl-ier asf in the: summer.

Iattaeh ronsidera-ble'@importance to the tant that tthe lradiator is *within 'the crank case "and fthat the oonduits may be easily and quickly installed vwithout any material or important changesineonneetion with the engine. what ehangesithere may be are ontsideot tlie"eugine. It is obvious that the radiator casing` may be shaped other than shown so=as to tit in v-arions-typesvol eranl: cases. vbut if suohan installation is iinpossible the eran-k3 case Can beeasily changed so las toreadily accommodate the radiator. .This is particularly true. Where there may bc a splash system oflubrioation.

My inventionis primarily designed-as an -oilcooling .device and is not necessarily l-imi'ted tombe-combined use of-oil heating means with oil cooling means, forin some ion Cilv

climates the conduits 9 and 23 may be eliminated and simply the conduit 20 employed for supplying Warm air to the carbureter besides' establishing the-air intake for the oil cooling radiator.

My invention is also primarily designed for the internal combustion engine 'of an automobile having a dash from which the Y throttles, particularly the throttle- 21.

IVhile in the drawing there is illustrated a preferred embodiment of my invention, it is to be understood that the structural elements are susceptible to such variations and modiiications as fall Within the scope of the appended claims.

l. -An oil cooling device for an internal combustion engine having a crank case, and a carbureter adapted to receive air, said device comprising an oil cooling radiator in the crank case and receiving air from outside of said crank case and ldischarging air into said carbureter, said oil cooling radiator having an upper wall abovethel level of oil in said crank case and adapted to cool air in said engine. l

Q. In an internal combustion engine having a crank case, a carbureter, provided with an air intake connection, an exhaust manifold provided with a stove. and a conduit connecting said stove to the air intake connect'on of said carburetor to supply heated airfto said carhureterz-an additional sourceV of heated air for said carbureter `comprising a. radiator communicating with the atmosphere and located in said engine so that air admitted to said radiator Will be heated by said engine, and a conduit connecting said radiator to the first mentioned conduit. An internal combustion engine as called for in claim 2, and a valve at` the juncture of said conduits for the selective use of either source of heated air.

4. An internal combustion engine as called for in claim 2 wherein the radiatoris located in the crank'case ot theengine to he heated by lubricating' oil` contacting with the radiator. l

5. -In an internal combustion engine having a crank case, a carbureter provided with an air intake connection, an exhaust manifold provided with a stove. and a conduit connecting said stove -to the air intake `connection of said carbureter to peri-nit the engine to draw heated air into said carbureter from said stove z-another source of heated air for the earbureter comprising means in the engine communicating With said carbureter and With the atmosphere and adapted to absorb heat from lubricating oils of the engine to heat air drawn through said means into the carbureter.

6. An internal combustion engine as called for in claim 5 wherein said means includes a radiator located in the bottomyot the crank case of the engine.

7. In an internal combustion engine, the combination With a crank case, a carbureter having an air intake connection, and an exhaustpipe, of an oil cooling radiator in the crank case of said engine communicating with the atmosphere and the air intake connection of the carbureter so that the enginemay draw air through the radiator into the carbureter with the air absorbing heat from oil in the crank case, and a connection between said exhaust pipe and said radiator by which exhaust gases may be used to heat said radiator and oil contacting with said radiator.

8,111 an internal combustion engine, the combination with a crank case, a carbureter having an air intake connection, an exhaust pipe having a stove, and a conduit connecting said stove to the intake connection of said carbureterto permit the engine to draw heated air into said carbureter from said stove, of a radiator in the engine crank case communicating With the atmosphere and the Acarbureter to permit the engine to draw air through the radiator into the carburetor. said radiator being exposed to oil and air in' the engine to absorb heat therefrom in the summer, means in connection With said conduits to permit of either source ot heated air being used. and another valved conduit connecting said exhaust pipe to the last mentioned conduit to permit of exhaust gases beingk used to heat said radiator and oil and air contacting therewith.

9. In an explosive engine, means adapted for cooling lubricating oils in the summer and heating lubricating oils in the Winter, said means including a radiator mounted in the engine and through which air may be circulated to cool the oils contacting with the radiator. selective means by which piston suction of the engine may draw air through the radiator, and selective means adapted to conduct exhaust `gases to said radiator for heating said radiator' and oils contacting therewith.

In testimonywhereof I alix my signature in the presence of'two Witnesses.

GEZA HORVATH.

Witnesses:

' KARL I-I. BUTLER,

ANNA M5. DORR. 

